Hrygorii Ivanovych Markelov was a Soviet Neuropathologist, doctor of medical sciences, professor, academician of the Academy of Sciences of the USSR, Honored Scientist of the Ukrainian SSR.
Hrygorii Ivanovych was born on February 7, 1880 in Perm to a servant’s family. After graduating from the gymnasium he was enrolled in St. Petersburg Military Medical Academy, where he studied the first years, but for family circumstances the future professor moved to Odessa and in 1906 graduated with honors from the medical faculty of Novorossiysk University, where he was employed for three years as a resident of the Clinic of Nervous Diseases. From 1913 to 1914 he worked as an assistant of the Department of Nervous Diseases of St. Petersburg Psychoneurological Institute under the guidance of Academician V.M. Bekhterov
From 1914, for four years, he was in the position of a senior doctor in the active army, in 1917 – he was in charge of the nervous department of Kiev Military Hospital. From 1918 he was an assistant of the Department of Nervous Diseases at the Faculty of Medicine of Novorossiysk University, and from 1923 he was an associate professor. In 1926, he became head of the department of Neuropathology of the research department of clinical and experimental medicine.
Professor Markelov is the author of 5 monographs, 120 scientific works, of which 3 monographs and 70 articles were devoted to questions of studying the autonomic nervous system. Markelov H.I. proposed the classification of diseases of the autonomic nervous system and a number of methods for the study of patients with its disorders, studied the question of cerebral vascular hypertension and hypotension, the influence of environmental factors (in particular, light) on the course of physiological processes, changes in the vegetative part of the nervous system in malaria and the like.
From 1927 to the end of his life professor Markelov was in charge of the Department of Nervous Diseases of Odessa Medical Institute. Since December 1930, Hrygori Ivanovych was a scientific director of Odessa Research and Developmental Psychoneurological Institute. For twenty years he was a member of the Board of Odessa Society of Neuropathologists and Psychiatrists.
To the 100th anniversary of the birth of H.I. Markelov there was a bronze memorial board installed on the building of the Odessa Regional Psychoneurological Dispensary, and to the 100th anniversary of Odessa National Medical University (in its main building) – a bronze bas-relief.